Chloroplast retrograde signal regulates flowering

文献类型： 外文期刊

第一作者： Feng, Peiqiang

作者： Feng, Peiqiang;Guo, Hailong;Chi, Wei;Chai, Xin;Sun, Xuwu;Xu, Xiumei;Ma, Jinfang;Lu, Congming;Zhang, Lixin;Feng, Peiqiang;Guo, Hailong;Chai, Xin;Rochaix, Jean-David;Rochaix, Jean-David;Leister, Dario;Wang, Haiyang;Feng, Peiqiang;Feng, Peiqiang;Sun, Xuwu

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关键词： chloroplast retrograde signals;flowering regulation;FLC;chromatin remodeling;high light

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.205； 五年影响因子：12.291 ）

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收录情况： SCI

摘要： Light is a major environmental factor regulating flowering time, thus ensuring reproductive success of higher plants. In contrast to our detailed understanding of light quality and photoperiod mechanisms involved, the molecular basis underlying high light-promoted flowering remains elusive. Here we show that, in Arabidopsis, a chloroplast-derived signal is critical for high light-regulated flowering mediated by the FLOWERING LOCUS C (FLC). We also demonstrate that PTM, a PHD transcription factor involved in chloroplast retrograde signaling, perceives such a signal and mediates transcriptional repression of FLC through recruitment of FVE, a component of the histone deacetylase complex. Thus, our data suggest that chloroplasts function as essential sensors of high light to regulate flowering and adaptive responses by triggering nuclear transcriptional changes at the chromatin level.

分类号： N

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